curl --request POST \
--url https://api.cleartalk.ai/contacts/get-custom-field-names \
--header 'x-api-key: <api-key>'curl --request POST \
--url https://api.cleartalk.ai/contacts/get-custom-field-names \
--header 'x-api-key: <api-key>'API Key for authentication
Custom field names retrieved and stored successfully